This paper describes use of a UT fixture for detection of stress corrosion cracking in ferrous heat exchanger tube-to-tubesheet welds and external tube corrosion or pitting near the tubesheets including crevice OD corrosion of the tube in the tubesheets.

A study of means for locating the source of exchanger shell to tube-side leaks in the water treatment section in a fertilizer plant (1) was undertaken. An effective UT inspection technique was developed, as a result.

Fig.1 pictures the fixture being tested in a mockup of a portion of the exchanger tubesheet

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How long does it take for you to receive reports after an inspection has been completed? A
week? A month? Does the data come from multiple sources with no way of knowing if it has
been manipulated? Traditional inspection contractors do not have the ability to provide reliable
and real-time data once an inspection is complete. The only way to ensure accurate, reliable
data is with technology.